Safety razor



Jan. 9, 1968 A. T. LOEWY 3,362,068

SAFETY RAZOR Filed June 30, 1966 Q '1; \"IOR Fig. 3 ALBERT T. LOEWY .664 ATTORNEY United States Patent 3,362,068 SAFETY RAZOR Albert T. Loewy,2400 S. Ocean Drive,

Hollywood, Fla. 33020 Filed June 30, 1966, Ser. No. 561,884 1 Claim.(Cl. 3070) ABSTRACT OF THE DISCLOSURE This invention relates to a safetyrazor blade adapted to be clamped within a razor head and with the razorhead having guards upon each side over which the blade fits and with aclamp engaging the razor head to force the blade into engagement withthe guards at an angle and with the razor head being concave to forcethe body of the blade into a concave groove of the razor head.

This invention relates to a safety razor blade for use in connectionwith razor blade holders of the double edge type and has fitment intorazor blade holders, such as the Gillette razor.

The invention contemplates a razor blade that is provided with angulardownturned edges that are sharpened and to engage the usual and wellknown blade holder, having guards upon both edges.

The blade is centrally slotted to receive the well known bar of therazor blade holder. The blade holder includes a clamping head adapted toforce the blade downwardly on to a concave surface of a mating headportion and to bias the edges of the blade downwardly over the guards ateach side of the razor blade holder, thereby pressing the blade edgesinto close engagement with the guards which imparts additional strengthto the cutting edges at their points of bending.

Novel features of construction and operation of the device will be moreclearly apparent during the course of the following description,reference being had to the accompanying drawings wherein has beenillustrated a preferred form of the invention and wherein likecharacters of reference are employed to denote like charactersthroughout the several figures.

In the drawings:

FIGURE 1 is a perspective view of a double edge razor blade constructedin accordance with the invention,

FIGURE 2 is a transverse section taken substantially on line 2-2 ofFIGURE 1,

FIGURE 3 is a side elevational view, parts in section and showing therazor blade in mounted relation to the conventional blade holder,

FIGURE 4 is a vertical sectional view taken substantially on line 4-4 ofFIGURE 3, and

FIGURE 5 is an exploded view showing the razor head, the clamping barand the razor blade in its initial position within the blade holder andprior to the clamping bar engagement.

Referring specifically to the drawings, the numeral 5 designates a razorblade of generally rectangular form and stamped to form angularlydisposed downturned cutting edges 6, that are sharpened at theirterminal edge as indicated at 7. The blade 5 is provided with the usualslot 8 and has fitment over a positioning lug 9.

The razor blade holder, as illustrated as a whole by the numeral 10embodies a head portion 11 and outwardly angled guards 12. The razorblade 5 has fitment over the guards 12 and is forced downwardly by anarcuate clamping head 13, carrying a screw threaded lug 14, that passesthrough an opening 15 to engage a threaded socket 16, of a handle 17.The upper surface of the head 11 is clamp 13.

3,362,068 Patented Jan. 9, 1968 In the use of the device, the blade 5 isdisposed upon the head 11, with its opposite cutting edges resting uponthe guards 12. The clamp 13 is then engaged through the opening 8 of theblade 5 and extends through the opening 15 of the razor head forthreaded engagement into the socket 16 and, with the clamp 13 beingforced downwardly by threaded engagement with the socket 16, the blade 5is forced to conform to the curvature of the head 11, such for instanceas shown in FIGURE 4, slightly bending the edges 6 upwardly to conformto the guards 12. With the handle rotated sufficiently to securely clampthe blade 5 onto the head 11, the edges 6 are biased upwardly to aslight degree, imparting a powerful bend to the cutting edges 6. Theblade 5 is preferably formed of any suitable metal that may be stampedinto the shape shown and to further flex the blade to conform to thecurvature of the head 11 and to also bend the edges 6 outwardly toconform to the angularity of the guards 12.

The angular downturned edge of the blade results in more rigidity of thecutting edge; this in turn makes the blade sharper than a blade withoutsuch a downturned edge. In FIGURES 4 and 5 the pressure of the clampforces edge 6' first down and then upwards into clamp 13. This createsadditional pressure against edge 6' and this adds to the sharpness. Thisshape for the blade and its corresponding razor builds up more tensionand pressure along the cutting edges. The following items create moresharpness in cutting edges: (1) Narrowness of the blade; in this casethe blade is very narrow.

(2) When hard and brittle materials are sharpened at the edges, theseedges lose their stiffness and thus their degree of sharpness unlessrigidity is created by the outside pressure of the razor. By thedownturning of the edge 6 and the undersection of downturned edge 6 withblade 5 creates an angle or shoulder and the shoulder creates tensionupon the blade and its cutting edge and as a result will not requireextreme clamping pressure of the razor. Due to the concave curvature ofthe blade in the razor effected by the clamping bar, shaving visibilityis greatly improved. This blade with the corresponding shaped razor canreach and shave in hard to reach areas, such as under the nose.

(3) Sharpness is created by longitudinal pressure of the razor clamp aswith all other blades, but in this case the shape of the blade and theshape of the razor clamp results also in upward pressure against theblade. Therefore pressure in two directions is obtained creating morerigidity than in ordinary flat blades without this bent edge.

The quality of stiffness has been sought by others in the direction ofincreasing the tension against a flat blade by designing and inventingrazors that have stronger pressures against the blade. In my inventionit is the blade that makes its own pressure resulting in a quality ofstiifness never before attained in a razor blade.

The blade as shown in FIGURE 4 permits a close shave with no scraping ofthe face possible and the material of the blade must be capable ofwithstanding the bending of the edges 6. The blade 5 may be dispensed ina package, with several of the blades lying upon each other and in theiroverlying relation preventing possible contact of cutting edges when anyobject that would affect the sharpened edges 7 and the blade of thisinvention is adapted to have fitment into any well known blade holder ordouble edge blades.

It is to be understood that the invention is not limited to the preciseconstruction shown, but that changes are contemplated as readily fallwithin the spirit of the invention as shall be determined by the scopeof the subjoined claim.

I claim:

1. A safety razor comprising: a blade holder, said blade holderincluding an elongated handle member and a a transverse head portionlocated at one end of the handle member, the upper surface of the headportion being bowed toward said handle member and bowed along the entirelength of said head portion, and said head portion having guards onopposite edge thereof that are inclined downwardly, a thin fiat blade,said blade having opposite end portions inclined downwardly and theedges thereof being sharpened, said blade holder having projection meansreceived in slot means on said blade to register the inclined bladeedges with the inclined edges of the head portion, a clamping bar, thelower surface of said clamping bar being complementary to the uppersurface of said head portion, said clamping bar having engaging means toengage the blade holder thereby clamping the blade against the headportion in conforming relation therewith.

References Cited UNITED STATES PATENTS 1,124,668 1/1915 Shure 30-84 X 52,113,772 4/1938 Rothschild et a1 3048 X 2,141,339 12/1938 Bauerle 3084X 2,191,324 2/1940 Segal 3072 2,502,062 3/1950 Rieger 3084 X 10 OTHELLM. SIMPSON, Primary Examiner.

WILLIAM FELDMAN, Examiner.

G. WEIDENPELD, Assistant Examiner.

